| Message ID | 1393411885-14895-3-git-send-email-kraxel@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
> -----Original Message----- > From: Gerd Hoffmann [mailto:kraxel@redhat.com] > Sent: Wednesday, February 26, 2014 5:51 AM > To: linux-fbdev@vger.kernel.org > Cc: linux-kernel@vger.kernel.org; gregkh@linuxfoundation.org; KY Srinivasan; > Abhishek Gupta (LIS); Haiyang Zhang; jasowang@redhat.com; > tomi.valkeinen@ti.com; devel@linuxdriverproject.org; Gerd Hoffmann; Jean- > Christophe Plagniol-Villard > Subject: [PATCH v5 2/2] hyperv-fb: kick off efifb early > > Remove firmware framebuffer before initializing hyperv-fb. Needed > on gen2 virtual machines. Letting register_framebuffer handle the > switchover results in efifb still being active while hyperv graphics > are initialized, which in turn can make the linux kernel hang. > > Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Thank you! Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/video/hyperv_fb.c b/drivers/video/hyperv_fb.c index b7b3dd0..e23392e 100644 --- a/drivers/video/hyperv_fb.c +++ b/drivers/video/hyperv_fb.c @@ -679,6 +679,8 @@ static int hvfb_getmem(struct fb_info *info) if (gen2vm) { info->apertures->ranges[0].base = screen_info.lfb_base; info->apertures->ranges[0].size = screen_info.lfb_size; + remove_conflicting_framebuffers(info->apertures, + KBUILD_MODNAME, false); } else { info->apertures->ranges[0].base = pci_resource_start(pdev, 0); info->apertures->ranges[0].size = pci_resource_len(pdev, 0);
Remove firmware framebuffer before initializing hyperv-fb. Needed on gen2 virtual machines. Letting register_framebuffer handle the switchover results in efifb still being active while hyperv graphics are initialized, which in turn can make the linux kernel hang. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> --- drivers/video/hyperv_fb.c | 2 ++ 1 file changed, 2 insertions(+)